This release contains a variety of fixes from 8.3.20. For information about new features in the 8.3 major release, see Section E.56, « Version 8.3 ».
The PostgreSQL™ community will stop releasing updates for the 8.3.X release series in February 2013. Users are encouraged to update to a newer release branch soon.
A dump/restore is not required for those running 8.3.X.
However, if you are upgrading from a version earlier than 8.3.17, see the release notes for 8.3.17.
Improve page-splitting decisions in GiST indexes (Alexander Korotkov, Robert Haas, Tom Lane)
Multi-column GiST indexes might suffer unexpected bloat due to this error.
Fix cascading privilege revoke to stop if privileges are still held (Tom Lane)
If we revoke a grant option from some role X, but X still holds that option via a grant from someone else, we should not recursively revoke the corresponding privilege from role(s) Y that X had granted it to.
Fix handling of SIGFPE when PL/Perl is in use (Andres Freund)
Perl resets the process's SIGFPE handler to SIG_IGN, which could result in crashes later on. Restore the normal Postgres signal handler after initializing PL/Perl.
Prevent PL/Perl from crashing if a recursive PL/Perl function is redefined while being executed (Tom Lane)
Work around possible misoptimization in PL/Perl (Tom Lane)
Some Linux distributions contain an incorrect version of pthread.h that results in incorrect compiled code in PL/Perl, leading to crashes if a PL/Perl function calls another one that throws an error.
Update time zone data files to tzdata release 2012f for DST law changes in Fiji